<!DOCTYPE html>
<html lang="zh">
	<head>
		<meta charset="utf-8">
		<link rel="stylesheet" href="style.css">
		<title>102 硬投影动效输入框</title>	
	</head>
	<body>
		<div class="app">
				<input type="text" class="inp102" placeholder="用户名" required />
		</div>
	</body>
</html>